To understand the protection level of outdoor high brightness LCD display advertising machines and determine the waterproof and dustproof level of IP65, we need to first understand the IP level.

The IP level is the protection level for electrical equipment casings against foreign object intrusion, such as explosion-proof electrical appliances, waterproof and dustproof electrical appliances, sourced from the International Electrotechnical Commission's standard IEC 60529, which was also adopted as a national standard in the United States in 2004. The format of IP level is IPXX, where XX is two Arabic numerals. The first marked number represents the level of contact protection and foreign object protection, and the second marked number represents the level of waterproof protection.

Dust level (the first X represents a total of 7 dust levels from low to high, represented by numbers 0-6)

0: No protection

1: Prevent large solid intrusion

2: Prevent intrusion of medium sized solids

3: Prevent the intrusion of small solids

4: Prevent solids larger than 1mm from entering

5: Prevent harmful dust accumulation

6: Completely prevent dust from entering

Waterproof level (the second X represents a total of 9 waterproof levels from low to high, represented by numbers 0-8)

0: No protection

1: Droplets of water entering the shell have no effect

2: Dropping water or rainwater from a 15 degree angle onto the shell has no effect

3: Dropping water or rainwater from a 60 degree angle onto the shell has no effect

4: Watering from any angle has no impact

5: Low pressure injection at any angle has no effect

6: High pressure jet water has no effect

7: Can withstand immersion in water for a short period of time (15cm-1m, within half an hour)

8: Immerse in water for a long time under certain pressure

So what we mean by the outdoor high brightness LCD advertising machine's protection level of IP65 is that the device completely prevents dust from entering and low-pressure spraying at any angle has no impact on the device.